Low-carbon lifestyle is of great benefit to improve the world environment. can be enjoyed from it until you have a deep understanding of it, however.
I was ________ leave ________ I saw him ________ towards me with a bag in his hand.
A new bridge will be built just at the place where the old one was ________.
________ the plan has been made,let's get down to ________ it out.
The government will force companies to ________ any possible measure to reduce air pollution.
________ in 1993,the EU,together with the US,is one of the two largest economies in the world.